Cost of goods sold (COGS)

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Be sure to record your product variant costs in Shopify so that Better Reports can compute your Cost of Goods Sold and Gross Margin accurately.
Cost of Goods Sold=Product variant cost×quantityCost\ of\ Goods\ Sold = Product\ variant\ cost × quantityCost of Goods Sold=Product variant cost×quantity
Gross Margin=Net sales − Cost of Goods SoldGross\ Margin = Net\ sales\ −\ Cost\ of\ Goods\ SoldGross Margin=Net sales − Cost of Goods Sold
Gross Margin(%)=Gross Margin / Net sales×100Gross\ Margin (\%) = Gross\ Margin\ /\ Net\ sales × 100Gross Margin(%)=Gross Margin / Net sales×100
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How is COGS computed when product cost is unspecified?
If the product cost is unknown, Better Reports cannot compute COGS. In such cases, the built-in formula assumes that COGS is equal to Net Sales, resulting in a 0% margin.
As a consequence, your COGS is overstated and your gross margin is understated. This is an arbitrary choice, used as a conservative measure. You could easily create your own COGS and Gross Margin measures to achieve a different outcome. For example, your formula might assume that, if the product cost is unknown, the gross margin should be set to 10% arbitrarily.
A cost of $0 is not the same as an unspecified cost. A cost of $0 means your COGS is $0 and therefore your gross margin is 100%. This is often the case for digital products (an eBook for example).
Shopify doesn't record the historical cost of product variants  (as of the date of the order).
As a result, COGS is always computed using the latest / current product costs.
For this reason, any time you update a product cost, all historical COGS amounts are updated immediately in all reports.
Another consequence is that if you delete a variant, it won't be possible to compute COGS anymore for that variant, because its cost cannot be retrieved anymore.
Historical inventory
Common sales metrics
Last modified 1yr ago
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